Bump pytest from 5.2.1 to 9.0.3 in /test/py

Bumps [pytest](https://github.com/pytest-dev/pytest) from 5.2.1 to 9.0.3.
- [Release notes](https://github.com/pytest-dev/pytest/releases)
- [Changelog](https://github.com/pytest-dev/pytest/blob/main/CHANGELOG.rst)
- [Commits](pytest-dev/pytest@5.2.1...9.0.3)

---
updated-dependencies:
- dependency-name: pytest
  dependency-version: 9.0.3
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

test/py/requirements.txt

@@ -11,7 +11,7 @@ pbr==5.4.3
 pluggy==0.13.0
 py==1.8.0
 pyparsing==2.4.2
-pytest==5.2.1
+pytest==9.0.3
 python-mimeparse==1.6.0
 python-subunit==1.3.0
 six==1.12.0